CommandBars("Text").Controls not deleted when exiting the document - VBA word add-in - vba

Question

I'm trying to create a add in for MS Word with VBA.
It has a "AutoExec" procedure that creates a new item in the CommandBar("Text") collection (right click menu) and a "AutoExit" that deletes this created item.
As an example, I tried the code below that create an item "How Many Pages?", which executes a macro displaying the number of pages in the active document.
This is the AutoExec Code:
Public Sub AutoExec()
Dim objcommandbutton As CommandBarButton
Call MsgBox("AutoExec")
Set objcommandbutton = Application.CommandBars("Text").Controls.Add _
(Type:=msoControlButton, Before:=1)
objcommandbutton.Caption = "How Many Pages?"
objcommandbutton.OnAction = "HowManyPages"
End Sub
This is the AutoExit Code:
Public Sub AutoExit()
Dim objcommandbutton As CommandBarControl
Call MsgBox("AutoExit")
For Each objcommandbutton In Application.CommandBars("Text").Controls
If objcommandbutton.Caption = "How Many Pages?" Then
objcommandbutton.Delete
End If
Next objcommandbutton
End Sub
This is the Main Macro Code:
Public Sub HowManyPages()
If Documents.Count > 0 Then
Call MsgBox(ActiveDocument.BuiltInDocumentProperties("Number of Pages"))
Else
Call MsgBox("No document is currently active.")
End If
End Sub
When exiting the document, the Button previously added in CommandBars("Text") collection is not deleted. I see this when I open a new blank Word document and the button remains in the right click menu.
I know that the routine is performed correctly because there is a MsgBox instruction to verify it.
This only happen with the AutoExit subroutine of a add-in, that is, loaded as a add-in: running the code in a macro with vba module works fine.
Any help?

Answer 1

When working with the CommandBars object model in Word it's necessary to always specify the Application.CustomizationContext.
Word can save keyboard layouts and CommandBar customizations in various places: the Normal.dotm template, the current template or the current document. The default when you create a CommandBar addition may not be the3 same as the default when trying to delete something.
Since this is an add-in, I assume you want the change for the entire Word environment (any open document). In that case, use the context NormalTemplate. Use this before any calls to CommandBar:
Application.CustomizationContext = NormalTemplate
Note: for saving a customization in the current document: = ActiveDocument; for saving in the template attached to the current document: = ActiveDocument.AttachedTemplate.

Answer 2

I solved my problem with a workaround:
I was trying to "add" a template (.dotm) as a add-in (in the "Templates and Add-ins" window) to use my VBA project in a new document. That's why I was using the AutoExec() and AutoExit() procedures.
But only now I figure out that just "attaching" the .dotm template to the active document (in the same "Templates and Add-ins" window, as show in the figure below) makes the functions Private Sub Document_Open() and Private Sub Document_Close() to run normally. Which solves my problem.
Even so, I think there is a certain "issue" with the AutoExit() procedure when trying to change the CommandBars itens. But that's ok for now.
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